mp4: Simplify and speed up metadata editing.

[paraslash.git] / mp4.h

diff --git a/mp4.h b/mp4.h
index 225c92c0fa7fdb21f2b8ad9df5be9783fa3e7457..71fd65d9459b18ea4f9b74da8ea8036c82435fa2 100644 (file)
--- a/mp4.h
+++ b/mp4.h
@@ -4,7 +4,6 @@ struct mp4_callback {
     uint32_t (*seek)(void *user_data, uint64_t position);
     uint32_t (*truncate)(void *user_data);
     void *user_data;
-    uint32_t read_error;
 };
 
 struct mp4_tag {
@@ -22,24 +21,22 @@ struct mp4; /* opaque */
 
 void mp4_set_sample_position(struct mp4 *f, int32_t track, int32_t sample);
 int32_t mp4_total_tracks(const struct mp4 *f);
-void mp4_get_decoder_config(const struct mp4 *f, int track,
-               unsigned char** ppBuf, unsigned int* pBufSize);
-struct mp4 *mp4_open_read(struct mp4_callback *f);
+bool mp4_is_audio_track(const struct mp4 *f, int32_t track);
+struct mp4 *mp4_open_read(const struct mp4_callback *cb);
 void mp4_close(struct mp4 *f);
 int32_t mp4_get_sample_size(const struct mp4 *f, int track, int sample);
 uint32_t mp4_get_sample_rate(const struct mp4 *f, int32_t track);
 uint32_t mp4_get_channel_count(const struct mp4 * f, int32_t track);
 int32_t mp4_num_samples(const struct mp4 *f, int track);
 uint64_t mp4_get_duration(const struct mp4 *f, int32_t track);
-struct mp4 *mp4_open_meta(struct mp4_callback *f);
+struct mp4 *mp4_open_meta(const struct mp4_callback *cb);
 
 int mp4_meta_get_by_index(const struct mp4 *f, unsigned int index,
                             char **item, char **value);
-int32_t mp4_meta_update(struct mp4_callback *f,const struct mp4_metadata * data);
-
+int32_t mp4_meta_update(struct mp4 *f, struct mp4_metadata *meta);
 int mp4_meta_get_num_items(const struct mp4 *f);
-int mp4_meta_get_artist(const struct mp4 *f, char **value);
-int mp4_meta_get_title(const struct mp4 *f, char **value);
-int mp4_meta_get_date(const struct mp4 *f, char **value);
-int mp4_meta_get_album(const struct mp4 *f, char **value);
-int mp4_meta_get_comment(const struct mp4 *f, char **value);
+char *mp4_meta_get_artist(const struct mp4 *f);
+char *mp4_meta_get_title(const struct mp4 *f);
+char *mp4_meta_get_date(const struct mp4 *f);
+char *mp4_meta_get_album(const struct mp4 *f);
+char *mp4_meta_get_comment(const struct mp4 *f);